table{
    width: 100%;
}
.headdiv{

}
.titdiv{
    font-size: larger;
    height: 40px;
    margin-top: 20px;
    margin-left: 20px;
    text-align: center;
    margin-bottom: 10px;
}
.formdiv{
    text-align: center;
}
.selectbtn{
    width: 100px;
    height: 30px;
    background-color: #CCCCCC;
    box-shadow: -2px 2px 2px slategray;
    margin-left: 20px;
}
tbody tr{
    text-align: center;
}